98 The Wood-frog, Rana sylvatica LeConte. 



THE AUTUMNAL DISAPPEARANCE. 



This silent species is not often recorded in autumn. Our late records 

 are mostly in the month of October, the latest being October 30, 1005. 

 Through midsummer (including first weeks of September) one occasion- 

 ally comes upon this form in the woods in much lighter livery than in 

 the early spring. Thereafter, it begins to think of its winter quarters, 

 and by the last of September or first of October it seeks cover. We 

 have found it in wooded ravines under stones, beneath boards in a 

 wooded sphagnum area, under boards in the vicinity of a sawdust 

 pile near the woods, in stumps and kindred places never, so far as our 

 experience goes, in water. 



